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請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/10276
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| 題名: | The Dual-Band Bandpass Filters Using Doubly Parallel-Coupled SIRs with Multiple Zeros for WLAN Applications |
| 作者: | Ho, Min-Hua;Ho, Hao-Hung;Rao, Chen-Mao |
| 貢獻者: | 電子工程學系 |
| 關鍵詞: | Doubly parallel-coupling;Multiple zeros assignment;Dual-band BPF;WLAN |
| 日期: | 2008-06
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| 上傳時間: | 2012-05-22T06:26:17Z
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| 出版者: | Maruzen Co., Ltd/Maruzen Kabushikikaisha |
| 摘要: | Two dual-band bandpass filters (BPFs) based on the doubly parallel-coupled stepped impedance resonators (SIRs) structures have been proposed in this paper. The coupled-SIRs with/without open-stub-loads are introduced in the filter design. The dual-band filters exhibiting multiple zeros design operate at 2.45/5.2-GHz for the WLAN applications. Two three-staged filters composed of four SIRs have been proposed with the tapped-line adapted in the I/O sections. A five-staged filter is constructed based on the same design principle to achieve a better band-rejection. The proposed filters have the advantages of a much wider bandwidth in both the passbands without sacrificing the passband's insertion loss and passband flatness. The design procedure for a conventional parallel-coupled microstrip lines model is still suitable to design the proposed filters. The proposed filters have achieved almost twice the band-width of a conventional parallel-coupled lines configuration under the same design parameters. The experiments have been conducted to verify filter performance. Measured results are in good agreement with the full-wave simulation results. |
| 關聯: | IEICE Trans. on Electronics, E91-C(6): 949-955 |
| 顯示於類別: | [電子工程學系] 期刊論文
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